
WÖSSNER Ring Set Ø74mm 1.00/1.20/2.00 (ref. 740XDS-3) — A ring kit designed for engine refurbishment on quads and motocross. Engineered to ensure piston sealing within the cylinder, this set allows for the replacement of worn rings during maintenance, restoring a clean cylinder alignment without unnecessary investment.
This ring set is aimed at maintenance preparations and top-end work: disassembly, cylinder inspection, honing, and replacement of wear parts. Easy to install for both amateur and professional mechanics, it allows for the renewal of the ring seating and ensures a good sealing base between the piston and the sleeve.
Main compatibilities (examples): YAMAHA YFM 250 RAPTOR 2WD (2012–2013), YAMAHA TT‑R 250 (2007). Check engine dimensions before installation to confirm compatibility.